cytokinin

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Related to cytokinin: abscisic acid, Gibberellins

cy·to·ki·nin

(sī′tə-kī′nĭn)

Any of a class of plant hormones that promote cell division and growth and delay the senescence of leaves.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cytokinin

(ˌsaɪtəʊˈkaɪnɪn)

(Botany) any of a group of plant hormones that promote cell division and retard ageing in plants. Also called: kinin

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

cy•to•ki•nin

(ˌsaɪ təˈkaɪ nɪn)

n.

any of a class of plant hormones, produced by the roots and traveling upward through the xylem, that promote tissue growth and budding and, on application, retard plant senescence.

[1960–65]

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Noun

cytokinin - any of a class of plant hormones that promote cell division and delay the senescence of leaves

kinin

growth regulator, phytohormone, plant hormone - (botany) a plant product that acts like a hormone

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References in periodicals archive ?

Thidiazuron: A potent cytokinin for efficient plant regeneration in Himalayan popular (Populus ciliata Wall) using leaf explants.

An Efficient Method for Direct Shoot Regeneration from Leaf Explants of Solanum nigrum Induced by Thidiazuron

In contrast to the results obtained from epicotyl explants, the presence of cytokinin in the medium significantly affected the number of shoots formed from hypocotyl segments treated with BA at culture initiation and first subculture (F Test, P [less than or equal to] 0.05, Figures 3A and 3B).

Micropropagation of aspidosperma polyneuron Mull. Arg. from in vitro germinated seedlings/Micropropagacao de aspidospermapolyneuron. Mull. Arg. a partir de plantulas germinadas in vitro

The media investigated were the MS medium supplemented with single cytokinin at various concentrations, 5, 10, 15 and 20 [micro]M, MS medium supplemented with single cytokinin (5, 10, 15 and 20 [micro]M) in combination with 0.5 [micro]M 3-indolebutyric acid (IBA) and MS medium supplemented with single cytokinin (5, 10, 15 and 20 [micro]M) in combination with 0.5 [micro]M IBA and 50 [micro]M adenine sulphate (ADS).

Effects of different types of phytophormones on organogenesis of Jatropha curcas

Increased concentration of this cytokinin exhibited reduced rate of bud breaks and shoot growth for both cultivars.

In vitro regeneration protocol for Anupam and Chini Champa: two banana (Musa sapientum) cultivars of Bangladesh

Effects of Cytokinin and Auxin on Shoot Organogenesis from Two Different Types of Explants.

Micropropagation of an exotic ornamental plant, Calathea crotalifera, for production of high quality plantlets

There was no sign of shoot proliferation when shoot bud explants were cultured in media without cytokinin and auxin.

Factors influencing rapid clonal propagation of Chlorophytum arundinaceum (Liliales: Liliaceae), an endangered medicinal plant

In some plants the exogenous application of cytokinin overcomes the inhibitory action of ABA in seed germination [11 and 12].

Plant regeneration from leaf explant in Sesamum indicum L. sesame--queen of oil seeds

Thus, this study aims to determine the following parameters: direct shoot regeneration from nodal explants of Phalaenopsis violacea flower stalks on half-strength Murashige and Skoog (MS, 1962) medium with different growth regulators; the effect of different cytokinin concentrations on PLB induction from leaf segments of Phalaenopsis violacea; and the effect of different cytokinin concentrations on PLB proliferation rate (%) of Phalaenopsis violacea.

Establishment of in vitro Phalaenopsis violacea plant cultures from flower-stalk cuttings

In tissue culture, the plant hormones auxin and cytokinin are used in an agarbased medium, along with vitamins and plant nutrients.

Chapter 4: vegetative propagation

The physiological effects of the resulting abnormally high cytokinin levels include stunted growth, adventitious shoot formation (loss of apical dominance), delayed senescence, and reduced root formation.

Engineering higher yield and herbicide resistance in rice by agrobacterium-mediated multiple gene transformation

What did the trick was a mild auxin mixed with a strong cytokinin, one used commercially for defoliating cotton plants to ease harvesting.